National air transport system:
number of registered air carriers: 2
inventory of registered aircraft operated by air carriers: 35
annual passenger traffic on registered air carriers: 1,803,112
annual freight traffic on registered air carriers: 41,954,600 mt-km (2015)

Civil aircraft registration country code prefix:
4K (2016)

Airports:
37 (2013)
country comparison to the world: 108
[see also: Airports country ranks ]

Airports - with paved runways:
total: 30
[see also: Airports - with paved runways - total country ranks ]
over 3,047 m: 5
[see also: Airports - with paved runways - over 3,047 m country ranks ]
2,438 to 3,047 m: 5
[see also: Airports - with paved runways - 2,438 to 3,047 m country ranks ]
1,524 to 2,437 m: 13
[see also: Airports - with paved runways - 1,524 to 2,437 m country ranks ]
914 to 1,523 m: 4
[see also: Airports - with paved runways - 914 to 1,523 m country ranks ]
under 914 m: 3 (2017)
[see also: Airports - with paved runways - under 914 m country ranks ]

Airports - with unpaved runways:
total: 7
[see also: Airports - with unpaved runways - total country ranks ]
under 914 m: 7 (2013)
[see also: Airports - with unpaved runways - under 914 m country ranks ]

Heliports:
1 (2012)
[see also: Heliports country ranks ]

Pipelines:
condensate 89 km; gas 3,890 km; oil 2,446 km (2013)

Railways:
total: 2,944.3 km
[see also: Railways - total country ranks ]
broad gauge: 2,944.3 km 1.520-m gauge (approx. 1,767 km electrified) (2017)
country comparison to the world: 62

Roadways:
total: 52,942 km
[see also: Roadways - total country ranks ]
paved: 26,789 km
[see also: Roadways - paved country ranks ]
unpaved: 26,153 km (2006)
[see also: Roadways - unpaved country ranks ]
country comparison to the world: 76

Merchant marine:
total: 311
[see also: Merchant marine - total country ranks ]
by type: general cargo 48, oil tanker 48, other 215 (2017)
country comparison to the world: 50

Ports and terminals:
major seaport(s): Baku (Baki) located on the Caspian Sea